cacheprovider.php

См. документацию.

<?
namespace Bitrix\Main\Composite\Data;
 
abstract class CacheProvider
{
    abstract public function isCacheable();
    abstract public function setUserPrivateKey();
    abstract public function getCachePrivateKey();
    abstract public function onBeforeEndBufferContent();
}
 
class_alias("Bitrix\\Main\\Composite\\Data\\CacheProvider", "Bitrix\\Main\\Data\\StaticCacheProvider");